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arXiv 2508.02066cs.LGcs.AIcs.CL

MolReasoner:迈向分子大语言模型的有效且可解释的推理

MolReasoner: Toward Effective and Interpretable Reasoning for Molecular LLMs

DP Technology, Beijing, China(DP技术有限公司);AI for Science Institute, Beijing, China(AI for Science研究院);Shanghai Jiao Tong University, Shanghai, China(上海交通大学);Fudan University, Shanghai, China(复旦大学)
Guojiang Zhao, Zixiang Lu, Yutang Ge, Sihang Li, Zheng Cheng, Haitao Lin, Lirong Wu, Hanchen Xia, Hengxing Cai, Wentao Guo, Hongshuai Wang, Mingjun Xu, Siyu Zhu… 展开作者

Guojiang Zhao, Zixiang Lu, Yutang Ge, Sihang Li, Zheng Cheng, Haitao Lin, Lirong Wu, Hanchen Xia, Hengxing Cai, Wentao Guo, Hongshuai Wang, Mingjun Xu, Siyu Zhu, Guolin Ke, Linfeng Zhang, Zhifeng Gao

AI总结:

MolReasoner通过两阶段框架提升分子大语言模型的推理能力和可解释性,有效减少幻觉并提高生成质量。

摘要:

大型语言模型(LLMs)在各种领域展现出卓越的性能,但其进行分子推理的能力仍处于探索阶段。现有方法大多依赖通用提示,缺乏特定分子语义,或微调,面临可解释性和推理深度的挑战,往往导致结构和文本幻觉。为了解决这些问题,我们引入了MolReasoner,一个两阶段框架,将LLMs从记忆转换为高保真化学推理。在Mol-SFT阶段,知识增强的思维链(CoT)数据提供了坚实的基础,而Mol-RL阶段利用新颖的任务自适应奖励系统来减轻幻觉。广泛的评估显示,MolReasoner在分子生成和描述任务中显著优于广泛的强基线。进一步分析突显了该框架的协同设计及其产生更可解释输出的能力。我们的工作提出了一个原则性且有效的新型方法,以推进高保真分子推理。

英文摘要:

Large Language Models (LLMs) have shown impressive performance across various domains, but their ability to perform molecular reasoning remains underexplored. Existing methods mostly rely on general-purpose prompting, which lacks domain-specific molecular semantics, or fine-tuning, which faces challenges in interpretability and reasoning depth, often leading to structural and textual hallucinations. To address these issues, we introduce MolReasoner, a two-stage framework that transitions LLMs from memorization to high-fidelity chemical reasoning. In the Mol-SFT stage, knowledge-enhanced Chain-of-Thought (CoT) data provides a strong foundation, while the Mol-RL stage refines reasoning using a novel, task-adaptive reward system to mitigate hallucinations. Extensive evaluations demonstrate that MolReasoner significantly outperforms a wide range of strong baselines in both molecule generation and captioning tasks. Further analyses highlight the framework's synergistic design and its ability to produce more interpretable outputs. Our work presents a principled and effective new approach for advancing high-fidelity molecular reasoning.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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